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Dec 7, 2022

Cardiovascular disease: DASH diet linked to 10% lower risk

Posted by in category: biotech/medical

A new study suggests that the DASH diet may help reduce cardiovascular risk by over 10%. Women and Black adults may reap the highest benefits.

Dec 7, 2022

NGA’s Stardust will modernize Earth models for GPS, mapping

Posted by in category: mapping

NGA is looking to both upgrade its software-based terrestrial data models and transition them to a cloud environment.

Dec 7, 2022

Methods for building lunar landing pads may involve microwaving moon soil

Posted by in categories: particle physics, space travel

Establishing a moon base will be critical for the U.S. in the new space race and building safe and cost-effective landing pads for spacecraft to touch down there will be key.

These pads will have to stop and particles from sandblasting everything around them at more than 10,000 miles per hour as a rocket takes off or lands since there is no air to slow the rocket plume down.

However, how to build these landing pads is not so clear, as hauling materials and heavy equipment more than 230,000 miles into space quickly becomes cost prohibitive.

Dec 7, 2022

Too much sodium, not enough potassium may lead to cognitive decline

Posted by in category: neuroscience

A recent study shows that consuming high levels of sodium is associated with cognitive decline. On the flip side, the findings suggest that diets high in potassium are associated with higher levels of cognitive function.

Dec 7, 2022

Could new cancer drugs come from potatoes and tomatoes?

Posted by in category: biotech/medical

Everyone knows someone who has had cancer. In 2020, around 19 million new cases—and around 10 million deaths—were registered worldwide. Treatments are improving all the time, but can damage healthy cells or have severe side effects that are hard on patients. In the search for new, more targeted cancer drugs, traditional medicine offers many possible candidates.

A team of Polish scientists led by Magdalena Winkiel at Adam Mickiewicz University, publishing today in Frontiers in Pharmacology, has reviewed the called glycoalkaloids, found in vegetables like potatoes and tomatoes, to demonstrate their potential to treat .

“Scientists around the world are still searching for the drugs which will be lethal to but at the same time safe for ,” said Winkiel.

Dec 7, 2022

The world’s first fully automated parking system has been approved for public use in Germany

Posted by in categories: robotics/AI, transportation

The system, with Level 4 autonomy, is in use at Stuttgart Airport for Mercedes cars and marks the start of a rollout of hundreds of systems in Germany.

The driverless parking system allows users to drop their Mercedes S-Class or EQS electric car at a drop off point after notifying an app. The system then checks that the route to a specific parking spot is clear and drives the vehicle autonomously to the correct location, wherever that might be in the parking garage.

Dec 7, 2022

Latest AI Research Finds a Simple Self-Supervised Pruning Metric That Enables Them to Discard 20% of ImageNet Without Sacrificing Performance, Beating Neural Scaling Laws via Data Pruning

Posted by in category: robotics/AI

Applying neural scaling laws to machine learning models, which means increasing the number of computations, the size of the model, and the number of training data points, can reduce errors and improve model performance. Since we have a lot of computing power available and collecting more data is easier than ever before, we should be able to reduce the test error to a very small value, right?

Here is a catch, this methodology is far from ideal. Even though we have enough computational power, the benefits of scaling are fairly weak and unsustainable due to the huge additional computational costs. For example, dropping the error from 3.4% to 2.8% might require an order of magnitude of more data, computation, or energy. So what can be a solution?

Dec 7, 2022

Megastructures 10: Matrioshka Brains

Posted by in categories: computing, neuroscience

In Episode 10 we explore the Matrioshka Brain, a nested Layer type of Dyson Sphere designed to turn stars in to giant computers, and conclude our look at Dyson Spheres and other types of Stellar Engines.

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Dec 7, 2022

Study shows that ketamine switches neuronal activity in the neocortex

Posted by in categories: biotech/medical, law, neuroscience

Human beings can sometimes experience dissociative states, moments in which they feel disconnected from their body and the world around them. While these states have been linked to many psychiatric conditions, they can also be elicited by the intake of some legal and illegal drugs.

One of the most renowned dissociation-inducing drugs is ketamine, an anesthetic commonly used to sedate patients or reduce pain resulting from medical procedures. In recent years, ketamine has also been found to be a potentially valuable treatment for some cases of depression.

While several studies have investigated the therapeutic effects of this strong anesthetic, so far very little is known about the cellular and neuronal mechanisms behind the dissociative states it produces. A paper by a team of researchers at University of Pennsylvania, recently published in Nature Neuroscience, might shed some light on these so far elusive processes.

Dec 7, 2022

Why we’ll never see back to the beginning of the Universe

Posted by in category: cosmology

We thought the Big Bang started it all. Then we realized that something else came before, and it erased everything that existed prior.

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